Solar cell

A solar cell comprising:

• a substrate having a front surface configured to face a light source in use, and a rear surface opposite the front surface, the front surface having a front surface morphology and the rear surface having a rear surface morphology, wherein the front and rear surface morphologies are configured such that the front surface has a greater surface area than the rear surface;
• an emitter arranged on the rear surface of the substrate;
• a reflector layer arranged on the rear surface of the substrate, the reflector layer comprising a first sub-layer having a first refractive index and a second sub-layer having a second refractive index that is greater than the first refractive index, and wherein the first sub-layer is rearward of the second sub-layer;
• and
• wherein the front surface morphology comprises a pyramid texture;
• wherein the rear surface morphology comprises a pyramid texture;
• and
• wherein a slope angle of a plurality of pyramids of the rear surface morphology is less than a slope angle of a plurality of pyramids of the front surface morphology.